In the print window, choose “Save as PDF” to keep a copy on your device.
1Formulas and methods
Nursing assistant (CNA) knowledge
Method
Check whether the resident is in danger right now (not breathing, choking, a fall, chest pain, stroke signs); if so, keep them safe and get the nurse at once.
Ask whether the task is within the nursing assistant’s scope and training; if not, decline politely and tell the nurse.
Respect the resident’s rights: privacy, choice, refusal of care, dignity and freedom from abuse and unneeded restraints.
Apply the basic rules: hand hygiene, body mechanics, bed low and call light within reach, weak side first when dressing.
Observe and report: compare with the resident’s usual state and report changes promptly and objectively.
Nursing math & unit conversions
Metric steps
1 kg = 1000 g, 1 g = 1000 mg, 1 mg = 1000 mcg, 1 L = 1000 mL
Weight and length
1 kg = 2.2 lb, 1 lb = 16 oz, 1 in = 2.54 cm, 1 ft = 12 in
Household measures
1 tsp = 5 mL, 1 tbsp = 15 mL, 1 fl oz = 30 mL, 1 cup = 8 fl oz = 240 mL
Write the given quantity with its unit and the unit you want.
Pick the equivalent: 1000 between kg, g, mg and mcg or L and mL; 1 kg = 2.2 lb; 1 tsp = 5 mL, 1 tbsp = 15 mL, 1 fl oz = 30 mL, 1 cup = 240 mL.
Write it as a fraction so that the unwanted unit cancels; for a rate, use one fraction per unit that changes.
Check the direction: a smaller unit gives a bigger number.
Round only the final answer, to the precision the question names.
2Practice problems
1.Nursing assistant (CNA) knowledgeMedium
During perineal care for an uncircumcised male resident, what is done with the foreskin?
AIt is never moved during perineal care
BIt is pulled back to clean, then returned to its normal position
CIt is pulled back and left in that position after care is finished
DIt is cleaned with alcohol without pulling it back
2.Nursing assistant (CNA) knowledgeHard
A doctor calls the unit and starts telling the nursing assistant a new order for a resident. What should the nursing assistant do?
AWrite the order down and carry it out right away
BTell the doctor to call back tomorrow
CWrite the order on a sticky note for the nurse
DPolitely ask the doctor to hold and get the nurse
3.Nursing math & unit conversionsMedium
Practice exercise (made-up values, not clinical guidance). A patient’s temperature is 100.2 °F. Convert it to degrees Celsius T with °C = (°F − 32) × 5/9. Round to one decimal place.
100.2 °F
T = °C
4.Nursing math & unit conversionsHard
Practice exercise (made-up values, not clinical guidance). During a shift a patient takes 3 cups of tea, 6 fl oz of juice, ½ tbsp of liquid supplement, 1½ tsp of cough syrup. Using the equivalents given, find the total oral intake V in mL.
1 cup = 8 fl oz = 240 mL1 fl oz = 30 mL1 tbsp = 15 mL1 tsp = 5 mL
V = mL
3Solutions
1.Nursing assistant (CNA) knowledge
Answer: B · It is pulled back to clean, then returned to its normal position
Why this is the answer
The foreskin is gently pulled back to clean the tip of the penis and then returned to its normal position. If it is left pulled back, it can cause swelling and restrict blood flow.
Answer
B · It is pulled back to clean, then returned to its normal position
2.Nursing assistant (CNA) knowledge
Answer: D · Politely ask the doctor to hold and get the nurse
Why this is the answer
Nursing assistants do not take orders from doctors. They politely explain and get a licensed nurse to take the order, which avoids errors.
Answer
D · Politely ask the doctor to hold and get the nurse
3.Nursing math & unit conversions
Answer: T = 37.9 °C
Temperature: °C = (°F − 32) × 5/9 and °F = °C × 9/5 + 32. Subtract 32 before you multiply when going from °F, and add 32 after you multiply when going from °C. A quick check: 37 °C is 98.6 °F, and every 1 °C is 1.8 °F.
Subtract 32
100.2 − 32 = 68.2
Multiply by 5/9
T = 68.2·5/9 = 37.89 ≈ 37.9 °C
Answer
T = 37.9 °C
4.Nursing math & unit conversions
Answer: V = 915 mL
Household measures and weight: nursing exams use rounded equivalents: 1 teaspoon (tsp) = 5 mL, 1 tablespoon (tbsp) = 15 mL = 3 tsp, 1 fluid ounce (fl oz) = 30 mL = 2 tbsp, and 1 cup = 8 fl oz = 240 mL. For weight, 1 kg = 2.2 lb and 1 lb = 16 oz; for length, 1 inch = 2.54 cm. Set the conversion up so that the unit you do not want cancels out.
Each item in mL
3 cups = 3·240 = 720 mL
6 fl oz = 6·30 = 180 mL
½ tbsp = 0.5·15 = 7.5 mL
1½ tsp = 1.5·5 = 7.5 mL
Add
V = 720 + 180 + 7.5 + 7.5 = 915 mL
Answer
V = 915 mL
This is independent practice material. ExamProblems is not affiliated with or endorsed by the organisation that runs this exam, and the exam name is used only to describe the content.